flarrow_api::prelude

Trait ArrowMessage

pub trait ArrowMessage {
    // Required methods
    fn field(name: impl Into<String>) -> Field;
    fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>;
    fn try_from_arrow(data: ArrayData) -> Result<Self, Report>
       where Self: Sized;
}

Expand description

Trait to represent a message that can be converted to and from an Arrow array.

Required Methods§

fn field(name: impl Into<String>) -> Field

Each message must declare how it’s represented as an Arrow field.

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

Try to convert the message into an Arrow array.

fn try_from_arrow(data: ArrayData) -> Result<Self, Report>
where Self: Sized,

Try to convert an Arrow array into the message.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types§

impl ArrowMessage for bool

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<bool, Report>
where bool: Sized,

impl ArrowMessage for f32

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<f32, Report>
where f32: Sized,

impl ArrowMessage for f64

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<f64, Report>
where f64: Sized,

impl ArrowMessage for i8

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<i8, Report>
where i8: Sized,

impl ArrowMessage for i16

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<i16, Report>
where i16: Sized,

impl ArrowMessage for i32

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<i32, Report>
where i32: Sized,

impl ArrowMessage for i64

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<i64, Report>
where i64: Sized,

impl ArrowMessage for u8

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<u8, Report>
where u8: Sized,

impl ArrowMessage for u16

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<u16, Report>
where u16: Sized,

impl ArrowMessage for u32

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<u32, Report>
where u32: Sized,

impl ArrowMessage for u64

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<u64, Report>
where u64: Sized,

impl ArrowMessage for String

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<String, Report>
where String: Sized,

impl ArrowMessage for GenericByteArray<GenericStringType<i32>>

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow( data: ArrayData, ) -> Result<GenericByteArray<GenericStringType<i32>>, Report>
where GenericByteArray<GenericStringType<i32>>: Sized,

impl<T> ArrowMessage for Option<T>
where T: ArrowMessage,

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<Option<T>, Report>
where Option<T>: Sized,

impl<T> ArrowMessage for PrimitiveArray<T>
where T: ArrowPrimitiveType,

fn field(name: impl Into<String>) -> Field

fn try_into_arrow(self) -> Result<Arc<dyn Array>, Report>

fn try_from_arrow(data: ArrayData) -> Result<PrimitiveArray<T>, Report>
where PrimitiveArray<T>: Sized,

Implementors§